Lighting module and lighting device

Abstract

A lighting module includes: a substrate; a light source located on the substrate; a first lens on which light emitted from the light source is to be incident; and a first holder to which the substrate and the first lens are fixed. Light exiting the first lens is substantially parallel light that is substantially parallel to the optical axis when viewed from a first direction intersecting an optical axis of the light source. The light exiting the first lens is substantially parallel light oblique to the optical axis when viewed from a second direction intersecting the optical axis and the first direction. A first end part of the first lens in the second direction is fixed to the first holder. When viewed from a third direction in which the optical axis extends, the first holder does not protrude outward of the first lens in the second direction.

The invention claimed is: 
     
       1. A lighting module, comprising:
 a substrate; 
 a light source located on the substrate; 
 a first lens on which light emitted from the light source is to be incident; and 
 a first holder to which the substrate and the first lens are fixed, wherein 
 light exiting the first lens is substantially parallel light that is substantially parallel to the optical axis when viewed from a first direction intersecting an optical axis of the light source, 
 the light exiting the first lens is substantially parallel light oblique to the optical axis when viewed from a second direction intersecting the optical axis and the first direction, 
 a first end part of the first lens in the second direction is fixed to the first holder, and 
 when viewed from a third direction in which the optical axis extends, the first holder does not protrude outward of the first lens in the second direction. 
 
     
     
       2. The lighting module according to  claim 1 , wherein
 when viewed from the third direction, the first holder does not protrude outward of the first lens in the first direction nor in a direction opposite to the first direction. 
 
     
     
       3. The lighting module according to  claim 1 , further comprising:
 a second holder, the substrate and a second end part of the first lens in a direction opposite to the second direction being fixed to the second holder, 
 the second holder not protruding outward of the first lens in the direction opposite to the second direction when viewed from the third direction. 
 
     
     
       4. The lighting module according to  claim 1 , wherein
 the first holder is configured to shield light. 
 
     
     
       5. The lighting module according to  claim 1 , further comprising:
 a second lens on which light emitted from the light source is to be incident, the second lens being located between the light source and the first lens, wherein 
 the second lens is fixed to the first holder, and 
 light that is emitted from the light source and travels via the second lens is to be incident on the first lens. 
 
     
     
       6. The lighting module according to  claim 5 , wherein
 the second lens is configured to condense the light emitted from the light source when viewed from the second direction, and 
 the first lens is configured to condense the light traveling via the second lens when viewed from the first direction. 
 
     
     
       7. The lighting module according to  claim 5 , wherein
 the first lens includes:
 a first light incident surface on which the light traveling via the second lens is to be incident; and 
 a first light-emitting surface opposite to the first light incident surface, the first light-emitting surface being curved to be convex when viewed from the first direction, and 
 
 the second lens includes:
 a second light incident surface on which the light emitted from the light source is to be incident; and 
 a second light-emitting surface opposite to the second light incident surface, the second light-emitting surface being curved to be convex when viewed from the second direction. 
 
 
     
     
       8. The lighting module according to  claim 7 , wherein
 an edge of the first light incident surface in the first direction and an edge of the first light-emitting surface in the first direction extend in the second direction, 
 an edge of the first light incident surface in a direction opposite to the first direction and an edge of the first light-emitting surface in the direction opposite to the first direction extend in the second direction, and 
 the first lens further includes:
 a first surface positioned between the edge of the first light incident surface in the first direction and the edge of the first light-emitting surface in the first direction; and 
 a second surface positioned between the edge of the first light incident surface in the direction opposite to the first direction and the edge of the first light-emitting surface in the direction opposite to the first direction. 
 
 
     
     
       9. The lighting module according to  claim 7 , wherein
 when the second light-emitting surface is divided into a first region and a second region by, as a boundary, a plane that passes through a center of the second light-emitting surface in the first direction and is orthogonal to the first direction, the first region and the second region are asymmetric with respect to the plane. 
 
     
     
       10. The lighting module according to  claim 1 , wherein
 the substrate does not protrude outward of the first lens in the second direction nor in a direction opposite to the second direction when viewed from the third direction. 
 
     
     
       11. The lighting module according to  claim 1 , wherein
 a through-hole or a recess is formed in the first holder, and 
 the first lens includes a projection configured to be located inside the through-hole or the recess. 
 
     
     
       12. A lighting device, comprising:
 a plurality of the lighting modules according to  claim 1 ; and 
 a fixing member configured to fix the plurality of lighting modules, 
 the fixing member being arranged to face the plurality of lighting modules in the first direction in a state in which the plurality of lighting modules are arranged in the second direction.